Jump to content
The mkiv Supra Owners Club

buying hks fcd


magnos

Recommended Posts

i`m just about to buy one of ebay,i know they not really good compared with thor or greddy but hks it`all i could find for sale at the moment ...will it do the job on my uk spec? or shell i wait till a better one is up for sale. thanks

Link to comment
Share on other sites

I bought an HKS FCD for my old Starlet, but everybody slated them so i sold it and bought a JAM Racing unit. So i understand it, the HKS unit is working constantly and can mess up the fuelling, where as the Greddy BCC only comes on when nearing fuel cut

Link to comment
Share on other sites

I've got an HKS unit on my (J-Spec) TT. They receive a bit of a slagging on here, I've noticed, but I've never had any problems with it. I think a lot of it is how it's set up...

 

:iagree: yep im the same, i have a HKS one as that was all thor had availible at the time, apparently they dont make em any more :blink: but I haven't had any problem with mine yet, it runs lumpy until the ecu re-learns, it took a few days but it does settle down :)

Link to comment
Share on other sites

The Big issue with the HKS FCD is how it prevents Fuel cut compared to Thor or Greddy

 

The Design of HKS FCD is poor and badly taught out, therefore your engine is higher risk to detonation and bad things happening

 

you might as well remove the vacuum hoses from the turbo sensor and fool the computer into thinking it's not making any boost, if you go with HKS and save yourself a few $$

 

the Greddy controls the Fuel cut a lot more delicate

 

Why choose Greddy BCC?

The GReddy BCC over the HKS Fuel Cut Defensor (FCD)and the Free Fuel Cut Defensor (FFCD) is simple. The HKS unit reduces the signal coming from the turbo pressure sensor at a fixed percentage, which means that all the data coming from this sensor is corrupt. The FFCD fixes the value coming from the turbo pressure sensor at something close to atmospheric by capping the pressure input to the sensor.The turbo pressure sensor is used for six different functions by the ECU

 

The Greddy BCC does not alter the signal significantly (I measured a 2.0 millivolt gain) and clamps the signal at a preset voltage that is user adjustable over a fairly wide range. It keeps all the stock functions operating properly, and avoids the sudden shutdown caused by fuel cut when the car exceeds the ECU's maximum boost value. It is well made, and should prove quite reliable over the long haul.

 

http://www.mkiv.com/techarticles/bcc/why_bcc/Why_the_GReddy_BCC.htm

Edited by Jellybean (see edit history)
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.